This lightning web component is created to display content inside SLDS section.
https://www.lightningdesignsystem.com/components/expandable-section/
https://developer.salesforce.com/docs/component-library/tools/playground/16htafEC/3/edit
(replace the domain)
https://YOUR_DOMAIN.lightning.force.com/packaging/installPackage.apexp?p0=04t3h000000ie6O
<c-section title="Section Title">
<!-- Section Content Goes Here-->
</c-section>String title
Event onopen
Event onclose